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C H A P T E R   19

C H A P T E R   19. Electric Potential Energy and the Electric Potential. 19.1  Potential Energy. Gravitational Potential Energy. 19.1  Potential Energy. Gravitational Potential Energy. W AB = GPE A - GPE B. 19.1  Potential Energy. W AB = GPE A - GPE B. W AB = EPE A - EPE B.

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C H A P T E R   19

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  1. C H A P T E R   19 Electric Potential Energy and the Electric Potential

  2. 19.1 Potential Energy Gravitational Potential Energy

  3. 19.1 Potential Energy Gravitational Potential Energy WAB = GPEA - GPEB

  4. 19.1 Potential Energy WAB = GPEA - GPEB WAB = EPEA - EPEB

  5. 19.2 The Electric Potential Difference WAB = EPEA - EPEB

  6. Definition of Electric Potential The electric potentialV at a given point is the electric potential energy EPE of a small test chargeq0 situated at that point divided by the charge itself: SI Unit of Electric Potential: joule/coulomb = volt (V)

  7. The Electric Potential Difference WAB = EPEA - EPEB

  8. Problem 7, Page 599 In a television picture tube, electrons strike the screen after being accelerated from rest through a potential difference of 25 000 V. The speeds of the electrons are quite large, and for accurate calculations of the speeds, the effects of special relativity must be taken into account. Ignoring such effects, find the electron speed just before the electron strikes the screen.

  9. Electron Volt (eV) One electron volt is the amount by which the potential energy of an electron (q0 = 1.60×10-19 C) changes when the electron moves through a potential difference of one volt. It is a unit of energy. 1 eV = 1.60×10-19 J

  10. 19.3 The Electric Potential Difference Created by Point Charges

  11. Potential of a point charge

  12. Potential Sketch

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